Date: Dec 27, 2012 9:49 PM
Author: ross.finlayson@gmail.com
Subject: Re: Countably Infinite Sets

On Dec 27, 6:43 pm, netzweltler <reinhard_fisc...@arcor.de> wrote:
> Does the set {{1}, {1,2}, {1,2,3}, ...} contain all natural numbers?

What does "..." mean?

Many would include zero.